<template>
  <div>
    <h1>{{ id ? "编辑" : "新建" }}广告位</h1>
    <el-form label-width="80px" @submit.native.prevent="save">
      <el-form-item label="名称">
        <el-input v-model="model.name"></el-input>
      </el-form-item>
      <el-button
        style="margin-left:40px;margin-bottom:1rem"
        type="text"
        @click="model.items.push({})"
      >
        <i class="el-icon-plus"></i> 添加广告
      </el-button>
      <el-row type="flex" style="flex-wrap:wrap">
        <el-col style="margin:1rem 0" :md="12" v-for="(item, index) in model.items" :key="index">
          <el-form-item label="跳转链接">
            <el-input v-model="item.url"></el-input>
          </el-form-item>
          <el-form-item label="广告图片">
            <el-upload
              class="avatar-uploader"
              :action="uploadUrl"
              :headers="getAuthHeaders()"
              accept="image/*"
              :show-file-list="false"
              :on-success="(res) => $set(item, 'image', res.url)"
            >
              <img v-if="item.image" :src="item.image" class="skills" />
              <i v-else class="el-icon-plus skills-uploader-icon"></i>
            </el-upload>
          </el-form-item>
          <el-form-item>
            <el-button type="danger" size="small" @click="model.items.splice(index, 1)">删除</el-button>
          </el-form-item>
        </el-col>
      </el-row>
      <el-form-item>
        <el-button type="primary" native-type="submit">保存</el-button>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
export default {
  data() {
    return {
      model: {
        name: "",
        items: []
      }
    };
  },
  props: {
    id: {}
  },
  methods: {
    async save() {
      if (this.id) {
        await this.$http.put(`rest/ads/${this.id}`, this.model);
      } else {
        await this.$http.post("rest/ads", this.model);
      }
      this.$router.push("/ads/list");
      this.$message({
        type: "success",
        message: `保存成功`
      });
    },
    async fetch() {
      const res = await this.$http.get(`rest/ads/${this.id}`);
      this.model = { ...this.model, ...res.data };
    }
  },
  created() {
    this.id && this.fetch();
  }
};
</script>

<style></style>
